Action bar state not retained on fragment replacement android

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http://stackoverflow.com – I have implemented sherlock fragment activity with navigation tab with view pager. The activity has 3 tabs public static class TabsAdapter extends FragmentPagerAdapter implements ActionBar.TabListener, ViewPager.OnPageChangeListener { private final Context mContext; private final ActionBar mActionBar; private final ViewPager mViewPager; private final ArrayList<TabInfo> mTabs = new ArrayList<TabInfo>(); static final class TabInfo { private final Class<?> clss; private final Bundle args; TabInfo(Class<?> _class, (HowTos)